The MOPITT Version 6 product: Algorithm enhancements and validation

M. N. Deeter; S. Martínez-Alonso; D. P. Edwards; L. K. Emmons; J. C. Gille; H. M. Worden; C. Sweeney; J. V. Pittman; B. C. Daube; S. C. Wofsy

doi:10.5194/amt-7-3623-2014

The MOPITT Version 6 product: Algorithm enhancements and validation

M. N. Deeter, S. Martínez-Alonso, D. P. Edwards, L. K. Emmons, J. C. Gille, H. M. Worden, C. Sweeney, J. V. Pittman, B. C. Daube, S. C. Wofsy

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95 Scopus citations

Abstract

The Measurements of Pollution in the Troposphere (MOPITT) Version 6 (V6) product for carbon monoxide (CO) incorporates several enhancements which will benefit many users of MOPITT data. V6 algorithm improvements are described in detail, and V6 validation results are presented. First, a geolocation bias related to the orientation of the MOPITT instrument relative to the TERRA platform was characterized and eliminated. Second, the variable a priori for CO concentrations for V6 is based on simulations performed with the chemical transport model Community Atmosphere Model with Chemistry (CAM-chem) for the years 2000-2009 instead of the model-derived climatology for 1997-2004 used for V5. Third, meteorological fields required for V6 retrieval processing are extracted from the MERRA (Modern-Era Retrospective Analysis For Research And Applications) reanalysis. Finally, a significant latitude-dependent retrieval bias in the upper troposphere in Version 5 products has been substantially reduced.

Original language	English
Pages (from-to)	3623-3632
Number of pages	10
Journal	Atmospheric Measurement Techniques
Volume	7
Issue number	11
DOIs	https://doi.org/10.5194/amt-7-3623-2014
State	Published - Nov 5 2014

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@article{1a5e3848057d47c88336fc3f9f148784,

title = "The MOPITT Version 6 product: Algorithm enhancements and validation",

abstract = "The Measurements of Pollution in the Troposphere (MOPITT) Version 6 (V6) product for carbon monoxide (CO) incorporates several enhancements which will benefit many users of MOPITT data. V6 algorithm improvements are described in detail, and V6 validation results are presented. First, a geolocation bias related to the orientation of the MOPITT instrument relative to the TERRA platform was characterized and eliminated. Second, the variable a priori for CO concentrations for V6 is based on simulations performed with the chemical transport model Community Atmosphere Model with Chemistry (CAM-chem) for the years 2000-2009 instead of the model-derived climatology for 1997-2004 used for V5. Third, meteorological fields required for V6 retrieval processing are extracted from the MERRA (Modern-Era Retrospective Analysis For Research And Applications) reanalysis. Finally, a significant latitude-dependent retrieval bias in the upper troposphere in Version 5 products has been substantially reduced.",

author = "Deeter, \{M. N.\} and S. Mart{\'i}nez-Alonso and Edwards, \{D. P.\} and Emmons, \{L. K.\} and Gille, \{J. C.\} and Worden, \{H. M.\} and C. Sweeney and Pittman, \{J. V.\} and Daube, \{B. C.\} and Wofsy, \{S. C.\}",

year = "2014",

month = nov,

day = "5",

doi = "10.5194/amt-7-3623-2014",

language = "English",

volume = "7",

pages = "3623--3632",

journal = "Atmospheric Measurement Techniques",

issn = "1867-1381",

publisher = "Copernicus Publications",

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TY - JOUR

T1 - The MOPITT Version 6 product

T2 - Algorithm enhancements and validation

AU - Deeter, M. N.

AU - Martínez-Alonso, S.

AU - Edwards, D. P.

AU - Emmons, L. K.

AU - Gille, J. C.

AU - Worden, H. M.

AU - Sweeney, C.

AU - Pittman, J. V.

AU - Daube, B. C.

AU - Wofsy, S. C.

PY - 2014/11/5

Y1 - 2014/11/5

N2 - The Measurements of Pollution in the Troposphere (MOPITT) Version 6 (V6) product for carbon monoxide (CO) incorporates several enhancements which will benefit many users of MOPITT data. V6 algorithm improvements are described in detail, and V6 validation results are presented. First, a geolocation bias related to the orientation of the MOPITT instrument relative to the TERRA platform was characterized and eliminated. Second, the variable a priori for CO concentrations for V6 is based on simulations performed with the chemical transport model Community Atmosphere Model with Chemistry (CAM-chem) for the years 2000-2009 instead of the model-derived climatology for 1997-2004 used for V5. Third, meteorological fields required for V6 retrieval processing are extracted from the MERRA (Modern-Era Retrospective Analysis For Research And Applications) reanalysis. Finally, a significant latitude-dependent retrieval bias in the upper troposphere in Version 5 products has been substantially reduced.

AB - The Measurements of Pollution in the Troposphere (MOPITT) Version 6 (V6) product for carbon monoxide (CO) incorporates several enhancements which will benefit many users of MOPITT data. V6 algorithm improvements are described in detail, and V6 validation results are presented. First, a geolocation bias related to the orientation of the MOPITT instrument relative to the TERRA platform was characterized and eliminated. Second, the variable a priori for CO concentrations for V6 is based on simulations performed with the chemical transport model Community Atmosphere Model with Chemistry (CAM-chem) for the years 2000-2009 instead of the model-derived climatology for 1997-2004 used for V5. Third, meteorological fields required for V6 retrieval processing are extracted from the MERRA (Modern-Era Retrospective Analysis For Research And Applications) reanalysis. Finally, a significant latitude-dependent retrieval bias in the upper troposphere in Version 5 products has been substantially reduced.

UR - https://www.scopus.com/pages/publications/84908666400

U2 - 10.5194/amt-7-3623-2014

DO - 10.5194/amt-7-3623-2014

M3 - Article

AN - SCOPUS:84908666400

SN - 1867-1381

VL - 7

SP - 3623

EP - 3632

JO - Atmospheric Measurement Techniques

JF - Atmospheric Measurement Techniques

IS - 11

ER -

The MOPITT Version 6 product: Algorithm enhancements and validation

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